Petroxestes pera Wilson et Palmer, 1988
| ID | 13820 |
|---|---|
| Fossil group | Bioerosional trace fossils |
| Taxon | Petroxestes pera |
| Author | Wilson et Palmer, 1988 |
| Reference | Wilson & Palmer, 1988 |
| Parent taxon | Petroxestes |
| FAD | Sandbian |
| LAD | Miocene |
Type specimens
| Type | No | Type locality | Type horizon | Remarks | Reference | ||||
|---|---|---|---|---|---|---|---|---|---|
| holotype | UNited States National Museum | USNM 419442 | confluence of Gunpowder Creek and the Ohio River | Upper Ordovician | Kope Formation | Wilson & Palmer, 1988 |
Description(s)
Wilson & Palmer, 1988:
Ecological remark. Petroxestes pera is found both on the upper surfaces and undersides of cobbles and hardgrounds, but usually only on the undersides of biogenic substrates.
Wilson & Palmer, 1988:
Diagnosis: Shallow to deep, elongate borings in lithic substrates; rounded ends and parallel, slightly convex, or slightly concave sides in plan view; rounded bottoms in longitudinal and transverse section; sides parallel or slightly divergent down wards in deeper specimens; length up to 30 mm; several times as long as wide.
Specimens with images (4)
